Traction device for vehicle-wheels.



c. o. smefnm.,` TRACTON DEVICE FOR VEHICLEWHEELS.

APPLLCATION FILED MA-Y12El9l6. 4

Patented Dec. 25

` @uvm/vbo@ C. 0 Sweeder tOFFICE.

CHARLES O. SNEEDER, OF RIPLEY, OHIO.

TnorIoN :DEVICE ron VEHICLE-WHEELS.

To all whom t may concern:

Be it known that I, CHARLES O. SNEEDER, a citizen of the United States, residino` at Ripley, in the county of Brown and State of Ohio, have invented '.-w and useful lmprovements in Traction" 'evices for Vehicle- Wheels. of which the following is a specification.

This invention relates to traction devices for vehicle wheels, the object of the present invention being to provide effective means applicable to and detachable from a vehicle wheel and especially wheels equipped with pneumatic tires, whereby, in the winter season, the wheel is enabled to obtain the necessary tractive hold or grip on the 'road surface whether ice or snow to successfully propel the vehicle in connection with which the wheel is used.

One of the principal objects of the present invention is to provide means of the character referred to which may be quickly applied to and removed from a wheel, the

,traction device when placed upon the wheel being securely mined position.

lVith the above and other objects in'view, the invention consists in the novel construction, combination and arrangement of parts, as herein described, illustrated and claimed.

n the accompanying drawings Figure 1 is a side elevation partly broken away illustrating the traction device of this invention in its applied relation to a vehicle wheel. 'I A Fig. 2 is a fragmentarycross section on an enlarged scale taken through the rim and tire and traction elements of this invention.

Fig. 3 is a side elevation of one of the annular carriers.

Fig. e is a fragmentary section on the line 4-.1 of Fig. s.

Referring to the drawings A generally designates a wheel embodying a hub 10, spokes 11 and a rim or felly 12, 13 designating the tire carrying rim and 14 a tire-of the pneumatic type carried by said rim 13. All of the parts thus far described are of the usual construction and relative arrangement.

In carrying out the present invention, I employ a pair of annular traction rings 15 and also a pair of annular carriers 16 and 17 for said traction rings. In the preferred embodiment of` this invention and in order to enabietire to be removed quietly one held in a certain predeter- Specication of Letters Patent.

Application led May 12, 1916.

Patented Dec. 25, 1917.

Serial No. 97,152.

of the annular carriers 16 is formedin one piece or of endless formation while the other annular carrier 17 is formed in a plurality of sections, two of such sections being preferably employed and the same being hinged together by a pivot 18. Thev adjacent end portions of the sections of the carrier 17 are reversely offset in relation to each other as shown in Fig. l to provide a lap joint and the pivot 18 which is shown in the form of a bolt passes through said odset and overlapped extremities. The opposite or free extremities are formed with a scarf joint 19 embodying a plurality of shoulders which interlock with each other when the free eX- tremities of the sections of the carrier are moved laterally in relation to each other, which lateral movement is permitted by the lflexibility of the carrier 17, the same being preferably composed of steel or other metal. The carriers 16 and 17 are fastened in -xed relation to the fclly of the wheel by means of bolts 2O any number of which may, I

of course, be employed,- said bolts being preferably inserted through metal blocks 21 set into the wheel felly as indicated in Fig. 1. Each of the carriers 16 and 17 is provided on the outer face thereof with an annular series of studs 22 each having an enlarged head 23.

`Each of the traction rings 15 is composed of arcuate sections, four of such sections being illustrated in Fig. 1 although it will, of course, be apparent,.that the number of sections is immaterial. Each of the sections of each traction ring/15 'is formed with a vplurality of L-shaped or bayonet slots 24, the entrance portions of which' extend in lines parallel to the radius of the wheel in order to enable each section to be slipped under the heads 23 of the studs 22 and then turned slightly so as to cause the studs 22 to occupy the ends of those portions of the slots which extend longitudinally of the felly of the wheel, thereby preventing the sections of the ri" *s 15 from becoming displaced.

l'n order to insure the retention of the sections of the rings 15 in interlocking engagement with the carriers 16 and 17, I

l; ll il? f:

'and terninate Yas shown in 2 considerabiy Withinthe outer periphery or tread the tire lelso as not to interere with the aetionf said tire when the maehineis being` operated solely upon the tires and Without the* traction rings. Said earriers form a protection fer the side of the. tirej reducing the liability of the ming punctnred. "When the tracin their proper Ypositions, they 'elitiy beyond the tread ei" the tho neecssziry' tra'etive grip 'ne read surface in ease .the same ier ,1.5 i

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is with ice or snow. The traction 1 f, I, a Whole also reduces the iiability of i dding ef the vehicle. in applying 'if each traction ring, the said are ail preferably pushed inwardly heads oi'.l the studs 'id en sections are longitudinal annei each other, the traction ring 1e is then turned su lciently to cause tuds to lie in the end portions o' i as shown in l. To remove each 'iion rine' the ooeration inst described is i i .l

@plv reversed. Y airing thus described my invention, l

he combination with a vehicie Wheel,

Se oi' aniiniar carriers arranged at opposite side Wheel eliy and having a fixed reiatio i to the nf'heel,headed studs progecting traction rings provided With bayonet slots to receive said headed studs, whereby an interlocked engagement is obtained between the traction rings and their carriers by a partial rotative movement of said rings in relation to the carriers, and means for preventing relative longitudinal movement between said traction rings and carriers.

2. The combination with a vehicle Wheel, of annular 'carriers arranged at opposite sides of the Wheel felly and having a fixed relation. to the Wheel, headed studs projecting from the outer faces of said carriers, sectional. traction rings provided with bayonet 'slots to reeeivesaid headed studs, whereby an interlocked engagement is obtained between the traction rings and their carriers by a partial rotative movement of said rings in relation to the carriers, and means for preventing relative longitudinal movement between said traction rings and carriers, one of said carriers embodyingtwo substantially semi-circular sections pivotally connected together and overlapped at one end, and pro- 'ided with an interlocking scarf joint at their free extremities.

in testimony whereof I affix my signature in presence of two Witnesses.

CHARLES o. SNEEDER. 

